TY  - BOOK
AU  - Date,C.J
TI  - An introduction to database systems: C. J. Date
SN  - 0321197844
PY  - 2004///
CY  - Boston, MA
PB  - Pearson Education,.
KW  - Data base management
KW  - Local
N1  - Includes bibliographical references and index
ER  -